基质匹配溶剂校准-GC-MS/MS法测定卷烟主流烟气B[a]P
廖惠云, Liao Huiyun, 王瑞, Wang Rui, 张华, Zhang Hua, 吴洋, Wu Yang, 曹毅, Cao Yi, 张媛, Zhang Yuan, 王晨辉, W. Chenhui
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引用次数: 0
基质匹配溶剂校准-GC-MS/MS法测定卷烟主流烟气B[a]P
为建立基质匹配溶剂校准-GC-MS/MS法快速测定卷烟主流烟气中B[a]P的方法,卷烟烟气经捕集后,采用振荡提取方式,萃取液直接进行色谱分析。考察了基质匹配溶剂的制备过程,比较了色谱进样方式、质谱参数等条件对目标物出峰情况的影响,优选了样品前处理步骤及样品提取方式。结果表明:①在优化条件下,目标物在1.04~20.8 ng/mL浓度范围内线性良好(R2为0.999 6),加标回收率在94.62%~104.81%之间,日内和日间相对标准偏差(RSDs)分别介于3.13%~3.80%和5.41%~6.94%之间,检出限为0.14 ng/支,定量限为0.46 ng/支,低于国标方法报道值。②18个不同盒标焦油量的细支和常规卷烟分析结果显示,本方法测定结果与现行国标方法基本一致。该方法具有操作简便、耗费溶剂少、灵敏度高等特点,适合于卷烟主流烟气B[a]P释放量的快速测定。
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